Clutch-yoke construction



Feb. 24, 1931. B, LOEFFLER '1,793,500

CLUTCH YOKE CONSTRUCTIOI Filed sepg. 12, 1929 `afa.

rulza Laefflgr,

Patented Feb. "l 91"1v Moron COMPANY, or NEW cLuTcH-YOKE coNsTitUcrroN i Application'medseptember 12,'19'291 sriaI'N-aeaosa" l The present invention relates to clutch constructions and embodies, morespeciiically, an

improved clutch yoke construction which 4facilitates the assembly and dismounting of the clutch, at the same time affording a rigid unitary member' formed of assembled eleimentsto replace the solid lunits which have been used heretofore.

vThe great diculty in assembling the,

clutch elements, particularly the clutch yoke for operating the throw out mechanism, has

`long been known. Heretofore Vtheyoke has been formed of a single piece and hasntherefore been very diiicult toassemble 'in the "clutch structure. The present. invention seeks to provide .an improved yoke construction whereby it may be assembled with comparative ease, the strength thereof being preserved in order that the operatic-n of the clutch may not be impaired.

An object of the invention, accordingly, is.

to provide an improved clutch yoke construction which simplifies the assembly of the clutch elementsv and accordingly facilitates inspection thereof, as well as replacement.

A further object of the invention is to provide a clutch yoke which may be applied after the cooperating clutch elements have been assembled. Y.

A further object of the invention is to provide an assembled clutch yoke whichis simple in construction and easy to manufacture, at the same .time greatly facilitating the mounting thereof within the clutch, as well as aordingl a construction of adequate strength.

Further objects, not specifically enumerated above, will be apparent as the invention is described in greater detail in connection with the accompanying drawings, wherein:

Figure l is a view in elevation, taken through the groove of a clutch throw out bearing and showing va clutch yoke constructed in accordance with the present invention, portions thereof being broken away and in section to illustrate the details more effectively. p Y

Figure 2 is a view in section, taken on line 2-2 of Figure l, and looking in the. direction of the arrows.

Figure 3 is fa! view',v in' section, 'taken on-r line 3-3\-ofFigure 1, ofi the f arrows'.v Y

Referring-'to ther-above' drawings?, a' designat-es a sleeve camying aY thnowi-out bearing and formed with a circum'ferfential` yoke* envBRUNO LOEFFLER, or PLAINFIELD, NEW .InRsEYTfAssfrGNoiurd INTERNATIONAL j 7 YORK, N; Y. a. coReoRAuzIoN@ or?.d DELAWARE andlooking-'inrthe direction gaginggroove 'af-.1x Bearingsy bf formed: on

the stationary portion oftherclutchf carry shafts @,aonerofwhichemay be any shaftactuatedxbytheclutchfpedal; A clutch yoke Iisshown mounted upon these :shafts and comprises' similar yoke'v portions cl `f'ormed witlt enlargedzportions-cl for"`receiving the end of shafts '0.' VKeysd? aref provided" in order that the yoke portions may. bel rigidly secured to the shafty sections. To facilitate mounting, theV yoke' por-tions.- are slottedff at cl3 and transversev bolts cl-4 extend therethrough in order that the'y shaft sections c may be tightly securedV within" the enlarged portions'V df afterf-the elements have-been properlyl assembled; Extensions 035' are formed! on: theiyoke portions and, carry iingers ZG which engage inthegroovea. The yoke portions .thus move the sleeve a a axially inawelliknow-n manner; f

operating l Bosses' Z7 are i formed `on: theffadj acent portionsof thejyoke'tse'ctions d' and are grooved atd'tofreceiveaboltf e.' On the outer faces of: thef bossesal?, recessed portions Z9 are formedf in which f the;` bolt heady and nut *liel in order that the bolt will not be-f'lost' fromthe connection should it accidentally become loosened.Y

The boltffe mayl be assembled with washers e which lie within the recesses 039, asilescribed above, and a pin f is received lwithin suitable recesses d10 in the yokesections to afford a more rigid assembled unit. n

It will beseen fromthe foregoing description that the clutch yoke may be assembled in the structure after the remaining clutch elements have been assembled by means ofl the sectionalized v'construction described above. After the elements have been assembled, they are secured effectively in position. in an obvious manner, and While the invention has been described withspecifc reference to the construction shown in the accompanying drawings, it is not toY be limited, save as defined in the appended claims. Y. What I claim is: Y c f 1. A clutch construction tionary Vjournal bearings, a yoke operated sleeve, shaft sections journaledzinfthe bearings, yoke sections, means to`v secure the sections to the shaftsV removably, opposed bosses formed onthe sections, meanson the sections engaging the sleeve, aligned@ grooves in the bosses, lrecesses in the bosses at' the ends'of the grooves, recesses 1n the adjacent faces of Vthe bosses, a pin engaging therecesses, andV M a bolt in the groovesrto secure the sections v together, the bolt head and nut lying in the recesses to preventdisplacement of theibolt from the grooves when thebolt is loosened.

2. A clutch construction comprising stationary: journal bearings, a yoke l operated sleeve, shaft sections journaled in the bearings, yoke sections, means to secure the sec-` tions to the shafts removably, opposed bosses formed on the sections, means on the sections engaging the sleeve, aligned grooves in the Y- bosses, recesses-inV the bosses'at the ends of the grooves, anda bolt inthe grooves to se. cure the sections together, the bolt headand nut lying yin the recessesto' prevent` displacement of the bolt fromy the grooves when the bolt is loosened. l Y

3. A clutch constructioncomprisingr stationary journal bearings, a yoke operated sleeve, shaft sections Vjournaled .in the bearings, yoke sections,` means tow secure the sections to the shafts removably, opposed bosses formed on the sections, means on the sections engaging the sleeve, aligned grooves in the bosses, and a bolt in the grooves to secure the sections together. i

4. A clutch construction comprising stationary journal bearings, a yoke Voperated sleeve, shaft sections journaled in the bearings, yoke sections, means to secure the sections to the shafts removably, opposed bosses formed on the sections, means on the' sectionsl engaging the sleeve, and means to secure the bosses together.

This specification signed this Gthday of Sept., A. D. 1929. Y

BRUNO LOEFFLER.

comprising sta- 

